Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

v3.21.2
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Series D Preferred Stock
Series E Preferred Stock
At the market offering
Private placement
Preferred shares
Preferred shares
Series D Preferred Stock
Preferred shares
Series E Preferred Stock
Common shares
Common shares
Series D Preferred Stock
Common shares
Series E Preferred Stock
Common shares
At the market offering
Common shares
Private placement
Additional paid-in capital
Additional paid-in capital
Series D Preferred Stock
Additional paid-in capital
Series E Preferred Stock
Additional paid-in capital
At the market offering
Additional paid-in capital
Private placement
Accumulated other comprehensive loss
Accumulated deficit
Balance at beginning of period (shares) at Dec. 31, 2019           11     55,212                      
Balance at beginning of period at Dec. 31, 2019 $ 51,352         $ 0     $ 55         $ 227,468         $ (1,995) $ (174,176)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                        
Net loss (8,547)                                     (8,547)
Foreign currency translation adjustment 830                                   830 0
Unrealized gain on investments 101                                   101  
Stock based compensation expense 2,520                         2,520         0  
Issuance of common stock resulting from exercise of stock options (in shares)                 139                      
Issuance of common stock resulting from exercise of stock options 271                         271            
Issuance of common stock resulting from purchase of employee stock purchase plan shares (in shares)                 47                      
Issuance of common stock resulting from purchase of employee stock purchase plan shares 145                         145            
Preferred stock conversion (shares)             3     3,000                    
Preferred stock conversion value   $ 0               $ (3)         $ 3          
Balance at end of period (shares) at Jun. 30, 2020           14     52,399                      
Balance at end of period at Jun. 30, 2020 46,672         $ 0     $ 52         230,407         (1,064) (182,723)
Balance at beginning of period (shares) at Mar. 31, 2020           11     55,212                      
Balance at beginning of period at Mar. 31, 2020 49,806         $ 0     $ 55         228,751         (1,227) (177,773)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                        
Net loss (4,950)                                     (4,950)
Foreign currency translation adjustment 178                                   178  
Unrealized gain on investments (15)                                   (15)  
Stock based compensation expense 1,237                         1,237            
Issuance of common stock resulting from exercise of stock options (in shares)                 139                      
Issuance of common stock resulting from exercise of stock options 271                         271            
Issuance of common stock resulting from purchase of employee stock purchase plan shares (in shares)                 47                      
Issuance of common stock resulting from purchase of employee stock purchase plan shares 145                         145            
Preferred stock conversion (shares)             3     3,000                    
Preferred stock conversion value   $ 0               $ (3)         $ 3          
Balance at end of period (shares) at Jun. 30, 2020           14     52,399                      
Balance at end of period at Jun. 30, 2020 46,672         $ 0     $ 52         230,407         (1,064) (182,723)
Balance at beginning of period (shares) at Dec. 31, 2020           14     56,003                      
Balance at beginning of period at Dec. 31, 2020 31,027         $ 0     $ 56         242,672         (295) (211,406)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                        
Net loss (19,670)                                     (19,670)
Foreign currency translation adjustment 529                                   529  
Stock based compensation expense 2,525                         2,525            
Issuance of common stock resulting from exercise of stock options (in shares)                 139                      
Issuance of common stock resulting from exercise of stock options 292                         292            
Issuance of common stock resulting from purchase of employee stock purchase plan shares (in shares)                 40                      
Issuance of common stock resulting from purchase of employee stock purchase plan shares 96                         96            
Issuance of common stock resulting from exercise of warrants (in shares)                 1,391                      
Issuance of common stock resulting from exercise of warrants 837               $ 1         836            
Preferred stock conversion (shares)           4   5 3,812   5,000                  
Preferred stock conversion value 0   $ 0           $ 4   $ (5)     (4)   $ 5        
Issuance of common stock pursuant to offering (in shares)                       3,004 7,290              
Issuance of common stock pursuant to offering value       $ 12,172 $ 18,913             $ 3 $ 8       $ 12,169 $ 18,905    
Balance at end of period (shares) at Jun. 30, 2021           16     66,679                      
Balance at end of period at Jun. 30, 2021 46,721         $ 0     $ 67         277,496         234 (231,076)
Balance at beginning of period (shares) at Mar. 31, 2021           14     59,719                      
Balance at beginning of period at Mar. 31, 2021 38,236         $ 0     $ 60         253,560         194 (215,578)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                        
Net loss (15,498)                                     (15,498)
Foreign currency translation adjustment 40                                   40  
Stock based compensation expense 1,326                         1,326            
Issuance of common stock resulting from exercise of stock options (in shares)                 129                      
Issuance of common stock resulting from exercise of stock options 272                         272            
Issuance of common stock resulting from purchase of employee stock purchase plan shares (in shares)                 40                      
Issuance of common stock resulting from purchase of employee stock purchase plan shares 96                         96            
Issuance of common stock resulting from exercise of warrants (in shares)                 1,391                      
Issuance of common stock resulting from exercise of warrants 837               $ 1         836            
Preferred stock conversion (shares)           4   5 3,812   5,000                  
Preferred stock conversion value 0   $ 0           $ 4   $ (5)     (4)   $ 5        
Issuance of common stock pursuant to offering (in shares)                       3,004 3,584              
Issuance of common stock pursuant to offering value       $ 12,172 $ 9,240             $ 3 $ 4       $ 12,169 $ 9,236    
Balance at end of period (shares) at Jun. 30, 2021           16     66,679                      
Balance at end of period at Jun. 30, 2021 $ 46,721         $ 0     $ 67         $ 277,496         $ 234 $ (231,076)